Improvement in plows



J..T. GREENFIELD.

PlowL NTOR n H/M/ww ATTORNEYS Patented Sept. 23,1879.

:fastened to the device at UNITED STATEsPA'rENT OFFICE.

JOHN GREENFIELD, OF UNIONTOWN, KENTUCKY.

I'M PROVEM ENT -IN PLows.

Specification forming part of Letters Patent No. 219.935, dated September 23, 1879; application filed April 29, 1879.

To all 'whom it may concern.-

Be it, known that I, JOHN T. GREENFIELD, of Uniontown, in the county of Union and State of Kentucky, have invented a new and useful Improvement in Flows, of which the following is a specification.

The object of my invention is to provide a plow the cutting parts and gagewheel of which can be conveniently lowered or raised, as may be necessary, on account of hardness .or unevenness of the ground, by a person seated on the plow, and also to provide a plow the mtting parts of which can be easily sharpene The invention consists in combining a beam having curved and grooved standard, an axle provided with toothed slide, a quadrant-lever, a curved lever sliding in guides and carrying gage-wheel, and hinged frame, as hereinafter described.

In the accompanying drawings, Figure 1 is a top view. Fig. 2 is a side view. Fig. 3 is a detail view of the ratchet-slide and cog-wheel. Fig. 4 is a view of the under side lof the cutting parts. Fig. 5 is a detail view of the cutting parts.

Similar letters of reference indicate corresponding parts.

To the beam A is lixed a curved standard, B. This standard has a groove on'its inner side, and in this groove a ratchet-slide, C, slides. Fixed to the standard is a small wing, E, in which is pivoted a cog-wheel. This cogwheel is provided with a lever-handle, F, so that by raising or lowering the lever the cogwheel will raise or lower the-slide, so that this slide can be adjusted in any desired position.

The wing E has a number of small recesses at its edge, into which a bar, c, fits. This bar/f" is pressed toward the wing by a small spi/ral spring. When the position of the cog-wheel is to be changed, the bar O can be drawn out of the recess by means of the lever d. One end of the axle Gis fastened to the vslide O on the other is the wheel H. f

The tongue I consists of two, piece understripped with iron, joined gether in front, and divi/ding gra g y .1 ward the axle. By means of a 'hook,"`e,` it is thehead of thelieam, and to the axle by meansV of clips, sothat it and can be adjusted on the same. This tongue also supports the seat X for the driver.

The lever J is made of iron, and is made of two parts, one on each side of the beam. Between these two parts the gage-wheel Kis pivoted. The lever is pivoted at g, and passes through slots h h at the head of the beam A.

'Near the handle of the lever a spring, L, is

found, which presses against the standard M, this standard being united at the top with the stan dard B. The spring, pressing against the brace portion M, engages the lever J with a ratchet-bar xed to one side of the standard B, and thus the lever J, and with it the gagewheel, can be raised or lowered and held in any desired position.

In the cutting parts of the plow the share O is made of wrought-iron, bent so as to form a ilange, and has this iiange riveted-to the landside. It its hat against the lower edge of the wing. The lay is of steel, littn g squarely against the lower edge of the wingN, and is riveted to the top side of the share. The point is of steel and shaped to it the other parts. As the point is the part of the plow that wears ofi' first it is very important that the same can be easily sharpened. When the point of my plow is heated it can easily be cut off and a new point welded on by any ordinary blacksmith. The same can be done with the lay. The wing-brace is riveted or bolted to the tail of the wing N, and also forms a seat for the rearl en'd of the beam.

The standard S is fastened to the beam A by a plip, s, passes downward, and is bolted or riveted to the land-side. The standard can be'fastened to either side of the beam, as may be necessary.

A rod, T, passes from the standard S'to the clevis t at` the head of lthe beam. This clevis has., several notches, by means of which the rod'f'lto which the horses are hitched can be raised/or lowered to suit the draft.

. Th/e handles assist in giving rigidity to the wing. x

/ The operation of the plow is the following: If the lever I is raised, the wheel resting on the ground will not be moved, but the beam and the parts connected to it will rise. According to the depth of the furrow to be made, the gage-wheel must either be raised or lowered. By pressing down the lever J the same is raised. By raising' it the wheel is lowered. If the wheel-gearing should ever be out ot' order, the tongue I is unhooked from the elevis t, and the slide C teken ont of the groove in the standard B, und thus that part of the plow consisting of the wheel,the laxle, slide, tongue, and seat can be easil)Y separated from the other part of the plow and repaired.

I ani aware that plows having a Wheel on the side have heretofore been made, but that I do not claim, broadly; but,

Having thus described my invention, what 

